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HFP01SC sensor

Updated:2023-01-14

Brand: Hukseflux
Model: HFP01SC
Description: HFP01SC self-calibrating heat flux sensor™ is a heat flux sensor for use in the soil. It offers the best available accuracy and quality assurance of the measurement. The on-line self-test verifies the
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Product Details

Overview of HFP01SC sensors：

User Manual Instructions

HFP01SC measures soil heat flux in W/m²

HFP01SC measures soil heat flux in W/m². It is used when the highest level of quality assurance and a high measurement accuracy are requir• ed. In essence, HFP01SC is a combination of a heat flux sensor and a film heater. The heat flux sensor output is a voltage signal that is proportional heat flux through the sensor. At a regular interval the film heater is activated to perform a self-test (see figure 4). The self-test results in a verification of sensor contact to the soil and in a new sensitivity that is valid for the circumstances at that moment. The latter is called self-calibration. Implicitly also cable connection, data acquisition and data processing are tested. The result is a much improved accuracy & quality assurance of the measurement relative to measurements with conventional sensors such as model HFP01.

The unique characteristics and advantages of HFP01SC sensor：

1、Low thermal resistance

2、Large guard area (required by the ISO 9869 standard)

3、Low electrical resistance (low pickup of electrical noise)

4、High sensitivity (good signal to noise ratio in low-flux environments)

5、Robustness, including a strong cable (essential for permanently installed sensors)

6、IP protection class: IP67 (essential for outdoor application)

7、Incorporated film heater for self-testing

Proposed use of HFP01SC sensor：

High-accuracy scientific measurement of soil heat flux, with a high level of data quality assurance

HFP01SC sensor applications：

1、Building physics / insulation, thermal comfort and energy budget measurement

2、Meteorology / surface energy flux measurement

3、Scientific research / heat and heat transfer measurement

HFP01SC sensor specifications：

Measurand	heat flux
Measurement range	-2000 to +2000 W/m²
Sensitivity (nominal)	60 x 10⁻⁶ V/(W/m)²
On-line functionality testing	self-test including self-calibration
Sensing area	8 x 10⁻⁴ m²
Sensor thermal resistance	81 x 10⁻⁴ K/(W/m²)
Rated operating temperature range	-30 to +70 °C
IP protection class	IP67
Film heater resistance	100 Ω ± 10 %
Film heater rated power supply	9 to 15 VDC
Interval between self-tests	6hr
Heating interval duration	180s
Power consumption daily average	0.02 W
Standard cable length	2 x 5 m
Options	・longer cable length (10, 15, 20, 30, 40 m)